Field trials

The team wanted to do these trials properly, so trained their horses to perform under Iron Age conditions. Would it all work?
'Without traces a vehicle can easily become destabilised ...'
Before the 5th century AD, when the Chinese invented the rigid collar and trace system of harnessing still in use today, horses were harnessed by a simple yoke. A principal problem of the yoke-only system is that there are no ‘traces’. These are leather straps which attach from collar to vehicle and are the means by which it is pulled.
Without traces a vehicle can easily become destabilised - and no one wanted that to happen, so the horses were drilled with care.
The team also wanted to experiment with using a bearing rein with the fifth terret - this is a rein which runs from the inside of each horse’s bit, back via a central terret. By adjusting the length of this they could affect the carriage (or bearing) of the horses’ heads - this had a direct impact on keeping them on a straight path.
Published: 2005-01-25
